Viktob von eeitznee



(N0 Model.)

v. VON REITZNBR.

LINEAMETEE. N0. 275,734. Patented Apr.10,1883.

izy/ fiy.2. h3s

IUNITED STATES PATENT OFFICE LINEAM ETER.

SPEGIFIC'ATION forming peitrt of Letters Pa.i:ent N0. 275,734, dated. April 10, 1883.

" Application filed September 25, 1882. (N0 moflel.)

T0 all whom z't may concern Be it; known th at I, VIK'IOR vom REITZNER, a subject of the Emperor of Austria, residing at the city ofVienna, in the Austro-Hungarian Empire, have invented certain new and useful Improvements in Liueameters; and I d0 hereby declare the fo!lowing t0 be afull, clear, and exact: description of the invention, such as will enable others skilled in the art 110 which ib appertains t0 make am] use the same, reference beinghad 150 the accompanying drawings, und to letters 0x figures of reference marked thereon, which form a part of this specification.

My invention relates t0 instruments f0r measuring the length of lines, whether straight, eurved, 01 compound; and it consists in t-he construction and operation ot' the mechmism, substantially as herein described, und specifically pointed 01113 in the clairns.

In the accompanying drawings, Figure 1 is an elevation of the improved lineaxneter, the front of the inclosing-case being removed and Figs. 2 and. 3 are front: and rear elevations of the instrument. Figs. 4 and 5 show, respectively, a rear' and fronb elevation of the instrument in its simplest form.

Tbe object of the invention is not only t0 provide a oonvenient: means for measuring the length of straight, curved, o1 compound lines, but also to construct the same in a compact f0rm, so that ib may be carried about the pers0n 01 attached to a watch-chain. T0 this end I preferably inclose the mechanism in a casing having the form of a medallion, and to afi'ord access to the meohanism contained therein I preferably provide the casing with a hinged or otherwise removable face.

In the abovedescribed figures of drawings, O indicates a easing, made of any s'uitable material, one of the faces, c, of whieh is either hinged to or otherwisa made removable from the body of the casing to afford access to the mechanism contained therein. The casing O has bearings c formed in its faces for the reception of the shafts of the measuring-disks A B D and their pinions 10 p, and a slot a1: the lower end, through whichthe wheel A projects 1:0 adapL it to be run a-1ong a line. Bot h faces 0f the casing have an opening, 0 o, through which the graduations of the disks B D may be seen. The disk A has a circumference 0f exactly sixteen eighths, 0r two inches, and its face 01 faces bear graduations that divide the circumference int0 sixteen equal parts. The axis of the disk A carries a pinion, p, that has eight; teeth, and meshes with adisk, B, the diameter 0f which is exactly seven and one-half lines. It bas forty-eight teeth, and its front faee bears graduations thab divide the circurnference ot' said disk B into tswenty-four equal parts, whicb graduafiions may be seen through the openingo in tbefrontfaee orlid. From what has been said it will be understood that ehe disk A has t0 revolve six times to eft'ecb one revolution of the disk B. The former will therefore have traveled over a distance equal to twelve inches, and the disk B will record inches. 'Ihe nxis 0t the disk B also carries n pinionp, having six teeth, thm: mesh with a disk,'D, the diameter of which is five lines, and which disk is provided upon its periphery with seventy-two teeth. The rear f-ace ofthe disk D bears graduations that divide its eireumference into tawelve equal parts. Upon the lower e'nd 0f either oue or bot-h faces the case carries a pointer, a, und the openings 0 0 may be provided with 1ike pointers 0r notches b b, respectively, as shown, t0 facilitate the observation 0f the revolutions 0f the disks A B D. 'lhe pinion 19' having six teet-h, the disk B will therefore riavolve twelve times t0 every revolntion of disk D. It will be readily understood that; thedisk Awill indicate the number 0f eighths of inches measured, the disk B the number of inches and half-inches, and the disk D the number of feet and half-feet 01 six inches Therefore when all the disks are adjusted with their standard-marks 01 0 graduation opposite the pointers a b b, (which may be done by rotating the disk A,) and the wheel or disk Ais run along a, line, the length thereof inlines,inches, andfeet may be readily read oft.

Although I prefer the construction of instrument; above described, owing t0 the faeility with which the measurements may be noted, said instrument may be considerabl y simplified and the disk A alone may be employed, as shown in Figs. 4 and 5. In this constructziou the measuring-disk A is journaled to a Suitable handle, H, provided with a pointer, a. In order t0 adapt: this form of instrument to De operate d With celerity, a-nd afford a better means than the pointer t0 observe and note the numher 0f rotations of said disk, Iadd t0 the visible index an audible index, whereby each revolntion of the disk is made known by a sound. Various means t0 effect this 1nay be employed, one of the simplest being a cam, e, up0n the disk-shafts, and a spring, f, connected will: the handle H, with its free end bearing 011 the ca1nsurface. The relative a1ran gement; of the cam, the spring and the disk is such that when the 0 graduation of the latter is in rea-r of Lhe pointer the springf will lie on that part of the cam having tl1e least diameter, and as the cam rotates the tension of the spring is inoreased until said eam has made a complete revolution, when the spring will snap oft the nose of the cam and strike the same with sufficient force t0 produce an audible sound, by which thenumher 0f revolutions made by th e disk may be connted. Of eourse it will be n'nderstood that, it desired, an audible index may be applied t0 the disk A 0! D of the instrument; shown in Figs. 2, and 3, und that the measurelnents may be made in lines, 01 lincs and inches, 0r lines, inches, and feet, o1 fractions thereof.

Having now described my invention, what[ 25 c1aim is 1. 'lhe casing Oprovided with openings 0 o in its opposite faees, in combination with the disks A B D, constrncted and arranged for operation substantially as and for the purposes 0 described und shown.

2. Tbe casing G, open ab 0ne end, und provided with a removable face and openings 0 o, having indexes or pointers, the disks A B D, and pinions p p, all constructed und arranged 3 5 for co-operation as and for the purposes specified.

In testimony whereof I afi1x my signature in presence 0f two witnesses.

VIKTOR VON REITZNER.

Witnesses:

G. CRAMER, H. KOTHER. 

